baber/WOPTO huggingface dataset:
Patent CA-2010048-A1 (CA)
IPC: B25B27/14
Filed: 1990-02-14
Abstract: A  blade  extractor  for  a  replaceable  blade instrument or tool, which comprises upper and lower tabs of length slightly exceeding that of a blade to be extracted, and of width slightly exceeding that of a blade to be extracted with side skirts provided on one or both tabs, abutment means provided on one tab and with the tabs being hinged  together  and  being  manually  and  progressively displaceable from a splayed-apart, open position to a closed position.  In the closed position, the tabs encapsulate the blade,  and  lie  in  substantially  parallel  planes,  with opposite  longitudinal  edges  of  the  tabs  and hence  the extractor closed off by the side skirts.  The abutment means engages a portion of the blade so that,  when the user manoeuvers  the  instrument or  tool  with  respect  to  the extractor during the extraction process, the blade is safely encapsulated within the extractor.
Patent CA-2012961-A1 (CA)
Inventor: ITO ROY A
IPC: B23K11/24
Filed: 1990-03-23
Abstract: A rack mountable weld controller for use as a plug in card within a rack of a programmable logical controller (PLC) system.      All signals between the PLC and the weld controller are through the backplane of the rack in which the weld controller is installed. In this manner, the large number of signals which are needed to operate the weld controller may be passed through the backplane rather than over a set of cables connecting the weld controller to an input card and output card which are themselves plugged into a backplane slot.
Patent CA-2014844-A1 (CA)
Title: Fuse having improved spring timer
Inventor: SPALDING KEITH A
IPC: H01H85/055
Filed: 1990-04-18
Abstract: The dual element time delay fuse includes a circuit overload trigger which opens the fuse in response to long term medium circuit overloads, and a short circuit strip disposed in a solid matrix filler for opening the fuse in response to the presense of a short circuit in the circuit.
Patent CA-2016150-A1 (CA)
Title: Higher alkylbenzotriazoles as copper and copper alloy corrosion inhibitors
Inventor: VANDERPOOL DANIEL P
IPC: C23F11/14
Filed: 1990-05-07
Abstract: TITLE OF THE INVENTION          "HIGHER ALKYLBENZOTRIAZOLES AS COPPER AND COPPER ALLOY CORROSION INHIBITORS"          ABSTRACT OF THE INVENTION   Higher alkylbenzotriazoles are used to inhibit the corrosion of metallic surfaces in contact with an aqueous system.  Systems and compositions containing higher alkylbenzotriazoles are also claimed.
Patent CA-2016980-A1 (CA)
Title: Rotating arc electrical switch
Inventor: BOLONGEAT-MOBLEU ROGER
IPC: H01H33/18
Filed: 1990-05-17
Abstract: ABSTRACT            ROTATING ARC ELECTRICAL SWITCH    A medium-voltage electrical switch comprises contacts actuated by a connecting rod and crank system. Parallel to the main contacts there is arranged an arcing circuit comprising a cylindrical electrode disposed inside a coil and whose internal surface cooperates with a movable arcing contact. The mechanical link connecting the main contact to the arcing contact comprises a crank and connecting rod system comprising a flexible part formed by an aperture and a spring providing the contact pressure of the arcing contacts. In the open position of the switch, the connecting rod extends perpendicular to the crank and the flexible part is neutralized so as to hold the movable arcing contact without clearance in the open position despite the electrodynamic forces acting on it.            Refer to figure 4.
Patent CA-2017425-A1 (CA)
Inventor: ELANGO VARADARAJ
IPC: C07C57/30
Filed: 1990-05-24
Abstract: A method is provided for the preparation of ibuprofen by carbonylating 1-(4'-isobutylphenyl)ethanol (IBPE) with carbon monoxide in an acidic aqueous medium, e.g. containing at least 10% of water based on the weight of IBPE initially added, at a terperature of at least about 10°C and a carbon monoxide pressure of at least about 500 psig, and in the presence of (1) a catalyst complex consisting essentially of a palladium compound in which the palladium has a valence of zero to 2 and is complexed with at least one monodentate phosphine ligand miscible with the organic phase of the reaction medium, the phosphorus/palladium mole ratio in said palladium compound and liqand being at least about 2.1 when the palladium/IBPE mole ratio is such that palladium-1 and IBPE-10,000 or more; (2) dissociated hydrogen ions from an acid which is substantially completely ionizable in dilute aqueous solution such that the mole ratio of hydrogen ions to IBPE added to the reaction zone is at least about 1.15; and, (3) dissociated halide ions such that the mole ratio of halide ions to IBPE added to the reaction zone is at least about 0.15.  Advantageously, a hydrogen halide is the source of hydrogen ions and halide ions.          The carbonylation is preferably integrated with a method of producing IBPE from isobutylbenzene wherein the latter compound is subjected to Friedel-Crafts reaction with an acetylating agent to produce 4-isobutylacetophenone, which is then reduced with hydrogen in the presence of a hydrogenation catalyst, or with a reducing agent containing available hydrogen, to obtain IBPE.  The palladium catalyst complex can be precipitated from an organic phase of the carbonylation reaction which typically includes the ibuprofen product.  The precipitated catalyst complex can be recycled without further treatment.
Patent CA-2026201-A1 (CA)
Title: Engineering plastic composition and articles made of the same
Inventor: DOYAMA KAZUO
IPC: C08L77/00
Filed: 1990-09-25
Abstract: ABSTRACT OF THE DISCLOSURE          An engineering plastic composition with excellent flowabillty, heat stability, and desirable mechanical properties is provided.  The composition contains an engineering plastic material and an aliphatio polyester.
Patent CA-2027587-A1 (CA)
Title: Styrene copolymer and process for production thereof
Inventor: TAZAKI TOSHINORI
IPC: C08F212/04
Filed: 1990-03-20
Abstract: ABSTRACT     A styrene copolymer which comprises a styrene repeating unit (a) represented by the general formula (I):                                 ... (I) and an acrylonitrile repeating unit (b) represented by the general formula (II-(b)):                                  ... (II-(b)) unsaturated carboxylic acid or its ester repeating unit (c) represented by the general formula (II-(c)):                                  ... (II-(c)) or maleimide or N-substituted maleimide (d) represented by the general formula (II-(d)):     ... (II-(d))   (in the formula, symbols are the same as defined in the specification) wherein stereoregularity of the styrene repeating unit (a) chain is a high degree of syndiotactic configuration is disclosed.
Patent CA-2030987-A1 (CA)
Title: Loading and unloading pallets
Inventor: MCLELLAN WILLIAM
IPC: B65G67/20
Filed: 1990-11-28
Abstract: ABSTRACT               IMPROVEMENTS IN OR RELATING TO APPARATUS FOR LOADING AND UNLOADING PALLETS          A loading and unloading system for pallets for containers or vehicles using wire cables as the loading means and arrangements for guiding and locating palletised goods on to the moving wire cables.
Patent CA-2035684-A1 (CA)
Title: Hand exercise device
Inventor: FAUST PEARL A
IPC: A61H15/00
Filed: 1991-02-05
Abstract: ABSTRACT OF THE DISCLOSURE         A hand exerciser treatment device includes a frame with peripheral walls bounding a rectangular panel.  Three cylindrical rollers with diameters higher than the peripheral walls span the width of the frame and roll the length of the frame.  The end walls are at least one-half of the diameter of the cylindrical rollers and a space block interfits into the frame abutting one end to reduce the rolling distance of the rollers which are rolled back and forth with the palm of the hand and the bottom of the fingers to aid in circulation and flexibility.
Patent CA-2036132-A1 (CA)
Title: Conversion of the jet stream
Inventor: SHEU BARNEY
IPC: F02K9/00
Filed: 1991-02-12
Abstract: ABSTRACT     The shape of a jet motion from  the nozzle has a powerful effect on decay rate which influences the thrust of the airplane.  As the jet air-stream from the nozzle proceeds downstream, turbulent mixing with the ambient air causes a spreading of the jet and a reduction in peak dynamic pressure. Thus, the dynamic pressure decays much more rapidly as the mixing surface area is increased.  It is to convert the jet air-stream from the nozzle into a strong thrust of turbulence and to increase the dynamic pressure, that a right circular hollow conical jet motion which is squirted out of the nozzle and thrusting into the cylinder are invented.
Patent CA-2040140-A1 (CA)
Title: Electrical connecting device and colored strip
Inventor: MITRA NIRANJAN
IPC: G09F3/00
Filed: 1991-04-10
Abstract: A B S T R A C T     Electrical connecting device having a housing with connecting means for at least one conductor and being provided with means to be coupled to another electrical device. The housing is provided with colored identification means provided in at least one recess in the housing. The colored indentification means can be introduced in this recess.
Patent CA-2041814-A1 (CA)
Title: Prohylaxis of pasteurellosis in animals
Inventor: MARNEWICK JOHANNES J
IPC: A61K39/102
Filed: 1991-05-03
Abstract: A B S T R A C T          A method of prophylaxis of pasteurellosis in animals,  which comprises administering parenterally to an animal of the kind described,  sufficient  of  a  vaccine  comprising  Pasteurella leucotoxin,  to render the animal  immune,  resistant or  less susceptible to pasteurellosis.
Patent CA-2048001-A1 (CA)
Title: 2-substituted-1-hydroxyindoles
Inventor: SCHLEIGH WILLIAM R
IPC: C07D209/30
Filed: 1991-07-26
Abstract: Abstract of the Disclosure The present invention relates to 2-substituted-1-hydroxyindoles of the following formula:       wherein, R1 is an electron withdrawing group, R2 is an alkenyl having 2-10 carbon atoms, an N-substituted .alpha.-iminobenzyl group wherein the substituents are selected from the group consisting of phenyl, anilino and dimethylamino, an unsubstituted aromatic group, and an aromatic group having meta or para substituents which are nitro, trifluoromethyl, fluoro, formyl, hydroxyiminomethyl and carbamoyl, R3 is a halogen atom, and n is 0, 1, or 2, provided that when R2 is either phenyl or nitro substituted phenyl and n is 0, then R1 is not cyano.
Patent CA-2048032-A1 (CA)
Title: Gas phase polymerisation
Inventor: HAVAS LASZLO
IPC: C08F10/00
Filed: 1991-08-01
Abstract: The present invention relates to a process for stopping an olefin polymerisation which is carried out in a low pressure gas phase reactor, which process comprises introducing an effective quantity of deactivating agent into the reactor, characterised in that the olefin polymerisation is carried out using a chromium oxide catalyst and in that the deactivating agent is selected from oxygen, ammonia, water and carbon monoxide and is introduced over a relatively short period of time. The deactivating agent is preferably introduced into the polymerisation reactor in a quantity such that in the reactor the weight ratio of the deactivating agent to the catalyst is at least 0,0001.
Patent CA-2048137-A1 (CA)
Title: Production process
Inventor: ROBB JOHN
IPC: C01G23/053
Filed: 1991-07-30
Abstract: A process for the production of a suspension of nuclei has been developed in which an aqueous mixture of titanium tetrachloride, aluminium ions and hydroxyl ions is cured at at temperature of from 50° to the boiling point. The pH of the suspension before or after curing has a value of from 6.5 to 10.5. The aqueous mixture is prepared by mixing a solution of titanium tetrachoride with a solution of a base, e.g. sodium hydroxide and aluminium hydroxide.  When used to nucleate hydrolysis in the "sulphate" process a large crystal size anatase pigment is produced.
Patent CA-2048707-A1 (CA)
Title: Fabrication method for transformers with an amorphous core
Inventor: HANAOKA KATSUMI
IPC: H01F27/25
Filed: 1991-08-08
Abstract: A method for fabricating transformers each having a core made from a lamination body of strips made of an amorphous magnetic alloy is comprised of steps of forming a ring-like lamination body using a grindstone cutter and a gas coolant to obtain  a  developed  lamination  body,  shaping the  developed lamination into a substantially rectangular core,  assembling windings with the core using a sliding tool for inserting leg portions of the core into windows of windings, covering the core with a core cover and mounting a grounding member so as to ground the core to the ground.
Patent CA-2049489-A1 (CA)
Inventor: WELTER THOMAS R
IPC: C07D333/38
Filed: 1991-08-19
Abstract: A method of controlling plant growth is provided comprising applying to the plants or to a habitat thereof a herbicidally effective amount of a compound having the structure:        wherein R1 is carboxy, cyano, ester,   or amido   wherein R is a straight-chained alkyl group or a branched-chained alkyl group having 1 to 8 carbon atoms, R3 and R4 independently of one another represent hydrogen, an alkyl having 1 to 8 carbon atoms, a cycloalkyl having 5 to 6 carbon atoms, or a heterocyclyl having 5 to 6 carbon and hetero atoms with said hetero atoms selected from sulfur, nitrogen and oxygen, or, R3 and R4 taken together with the nitrogen atom of the amido group represent pyrrolidinyl, piperidinyl or piperazinyl.  Also, novel compounds having the above structure are provided.
Patent CA-2049526-A1 (CA)
Title: Orthopedic pillow with speakers
Inventor: ALBERT CHESTER
IPC: H05K11/00
Filed: 1991-08-20
Abstract: ABSTRACT "ORTHOPEDIC PILLOW WITH SPEAKERS"    A   pillow   comprises   a   horizontally extending body for supporting the head of a user of the pillow.  The pillow also comprises a pair of leg members  which  extend  transversely  at  opposite lateral ends of the body and downwardly from a lower surface thereof,  thereby defining a space between the  leg members  and under  the body.   A pair of speakers are positioned in the body each at least partly above a respective leg member and in a way so that sound emitted thereby is directed substantially vertically when no load is applied on the pillow. The  body being made of a flexible material,  the resting  of  the  user's  head  on  an  upper  central portion of the body causes this central portion to deflect downwards with the leg members and the end portions of the body pivoting upwards and inwards in such a way that the speaker pivots with the body so that  sound  emitting  therefrom  is  directed  at  an angle upwards and inwards towards the user's ears.
Patent CA-2050392-A1 (CA)
Title: Quick-adjusting, multiple dispenser positioner
Inventor: JETER DAVID R
IPC: B05B13/02
Filed: 1991-08-30
Abstract: QUICK-ADJUSTING, MULTIPLE DISPENSER POSITIONER          Abstract of the Disclosure An  apparatus  for  adjusting  the  relative position of two or more material dispensers comprises a  first module adapted to connect to a  source of material, and a second module which is axially movable with  respect  to  the  first module.   The  first  and second  modules  each  mount  at  least  one  material dispenser such that a material passageway formed in each module is connected to a discharge bore formed in each material dispenser.  The passageways in the first and second modules, in turn, are interconnected by a pair of pivot arms arranged in a scissors-like config-uration which extend between the modules,  and  are movable between an extended and retracted position in response to movement of the second module,  so that each dispenser can be supplied with material from a single supply line.
Patent CA-2051852-A1 (CA)
Title: Blind fastener with drive nut
Inventor: HUTCHINSON SCOTT A
IPC: F16B19/10
Filed: 1991-09-19
Abstract: ABSTRACT          This invention relates to a fastener of a type having a core pin including a threaded shank portion, an enlarged head at one end thereof, and a torque tool engaging means on the opposite side of the core pin from the head.  The fastener further has an expander means including the head with at least one recess in the outer surface at one end thereof and a tapered nose portion at the other end thereof.  The expander means has a bore there-through to receive the threaded shank portion of the core pin. Also, the fastener has sleeve means on the core pin between the nose portion of the expander means and the enlarged head of the core pin.  An internally threaded drive nut is threadedly mounted on the core pin.  The drive nut has a bearing surface facing towards the outer surface of the head of the expander means.  The improvement in the fastener in accordance with this invention comprises the drive nut's bearing surface having at least one projecting portion adapted to engage in the recess in the outer surface of the head of the expander means without deformation of the projecting portion.  The number of projecting portions can be equal to or less than the number of recesses.     a:clms1376.wpf
Patent CA-2054891-A1 (CA)
Title: Method of chiropractic treatment and shaped blocks therefor
Inventor: BROSSARD ANDRE
IPC: A61G7/075
Filed: 1991-11-04
Abstract: ABSTRACT OF THE DISCLOSURE:            A shaped block  that can be used  for chiropractic treatment.  The block has a base, a rear end face, an upper face parallel to the base and merging with the upper edge of the rear end face, a rectangular front end face merging with the front end of the base,  and an upper oblique portion between the upper face and the front end face inclined between 60° to 85°.  The oblique portion has a first upper inwardly curved section descending from an inner edge of the upper face,  an intermediate flat face portion following the first curved section and raised above the plane of the oblique portion, and lifted 7° to 9° at the lower end, and a lower curved section between the intermediate flat face and the second end face. Irregular faces connect these parts together into a block. The faces of the curved section are anti-skidding so as to engage human body portion under treatment while preventing it from sliding along the curved surfaces.  The block is made of soft rubbery material.  A handle may be provided at the rear end to manipulate the block.   For treatment, the blocks are used in pair.  For a right handed person, one block is inserted underneath the person lying on his back so as to rest below the right ischium against the oblique portion of one block, the block being oriented transversely with the lower front end corner pointing towards the groin area of the body of the person, and the second block is inserted underneath the same person with the oblique portion immediately below the left ischium with the upper front end corner pointing towards the groin area.
Patent CA-2058131-A1 (CA)
Title: Loudspeakers
IPC: H04R1/00
Filed: 1991-12-19
Abstract: ABSTRACT      A method of making a loudspeaker cone and flexible surround assembly comprising arranging an injection moulded plastics cone in the mould cavity of an injection moulding apparatus and injection moulding an elastomeric material onto the periphery of the cone under heat and pressure to form a surround or suspension which is chemically bonded to the material of the cone.     The invention is also a loudspeaker cone and surround assembly wherein the surround is an injection moulding formed directly on to the cone.
Patent CA-2060648-A1 (CA)
Title: Modular cover for an air bag assembly
Inventor: SAKATA YOSHIAKI
IPC: B60R21/2165
Filed: 1991-06-06
Abstract: ABSTRACT         A modular cover for an air bag assembly has good appearance and is durable.  The modular cover includes a main surface (3), four side walls (2A), (2B), (2C) and (2D) integral with the main surface (3), and a tear  line (6) extending along only three of the four side walls (2B), (2C) and (2D).
Patent CA-2060886-A1 (CA)
Title: Recoverability in mass storage data base systems
Inventor: KRUESI FREDERICK C
IPC: G06F12/00
Filed: 1991-04-24
Abstract: The message management system utilizes a flat file (20) on mirrored disk for storing fixed-length Message Segments (MS) of variable-length Messages to be managed by the system. Inconsistencies between mirrored copies of data are tolerated and cor-rected. Message Management includes Storing, Retrieving and Deleting Messages in response to commands from clients. Each Message Segment in the flat file is stored in a record containing the Message Segment data and Recovery Information (RI). A data base (21) for accessing the Message Segments in the flat file is maintained on system disk. The Recovery Information is such as to permit recovery of the data base from the Recovery Information in the flat file if the data base is obsolete, lost or corrupted. TNAUDIT file is utilized to determine that the data base is synchronized with the flat file. If data base inconsistency is detected, the data base is rebuilt from the Recovery Information.
Patent CA-2061386-A1 (CA)
Title: Novel non-aqueous dispersions
Inventor: TOMKO RICHARD F
IPC: C08F20/00
Filed: 1992-02-18
Abstract: ABSTRACT          This invention relates to high solids, low VOC, low viscosity, filterable,  non-gritty  non-aqueous  dispersions,  and  coating compositions containing said non-aqueous dispersions.
Patent CA-2062406-A1 (CA)
Title: Ganglioside gm3 analogs
Inventor: HASEGAWA AKIRA
IPC: A61K31/70
Filed: 1992-03-06
Abstract: ABSTRACT           Disclosed are ganglioside GM3 analogs represented by the formula   in which X represents a radical of the following formula   wherein at least one of R1, R2, R3 and R4 is hydrogen and the remainder is hydroxyl;       wherein at least one of R5 and R6 is hydrogen and the remainder is methyl;                      ;   or            wherein m is an integer of 15 to 25, ? is an integer of 0 to 3, n is an integer of 11 to 15 and Ac represents acetyl.          The ganglioside GM3 analogs are expected to possess an inhibitory activity for influenza virus.
Patent CA-2063837-A1 (CA)
Inventor: HERSHBERGER DAVID L
IPC: H03L7/095
Filed: 1992-03-24
Abstract: A voltage controlled reference oscillator (20) with a high Q and narrow tunability bandwidth produces an output oscillator frequency which is frequency divided (18) by four alternative constants to produce four different clock frequencies for four different digital video standards, D1 component at 270 MHz, NTSC D2 composite at 143 MHz, PAL D2 composite at 177 MHz, and a proposed new composite video standard that is to operate at a 360 MHz clock rate.  Automatic identification of which serial digital video is present is accomplished by having the clock generator (20,18) produce a clock signal at the frequency required by one of the video formats while a phase lock loop (90,26) attempts to lock onto the incoming signals at that frequency. If no lock occurs within a predetermined time interval, the clock generator (20,18) is made to produce a clock signal at the frequency required by a different one of the video formats and the phase lock (90,26) is attempted again.  This is repeated until a lock is attained.  Optionally, when a lock occurs, the video is tested (80) for validity within the format that is consistent with the clock frequency that produced the lock.